Taltirelin acetate is a superagonist at thyrotropin-releasing hormone receptor (TRH-R)(IC50 of 910 nM and EC50 of 36 nM for stimulating an increase in cytosolic Ca2+ concentration (Ca2+ release)).

Biotin-PEG4-azide is a biotin-labeled, PEG-based PROTAC linker that can be used in the synthesis of PROTACs.

4-Azido-L-phenylalanine (p-Azido-L-phenylalanine) is an amino acid derivative that acts as a photoaffinity marker and can be used to detect localized protein environments.